Understanding how advantageous mismatches actually work in the NBA
Thursday, January 21st, 2010Early in the Sixers loss to the visiting Blazers, Portland had an obvious mismatch. The 6-7 Martell Webster was being guarded by the smallest guy on the court, Allen Iverson, who is listed as 6-0 but was once described by then-teammate Aaron McKie as 5-10, which seems plausible.
Webster can shoot from the outside, and is strong and athletic enough to score in the paint. In theory, he could feast on a small defender.
The Blazers force-fed Webster again and again. The smaller Iverson battled. “Just trying to fight him early,” said Iverson after the game. “Trying to push him out as much as possible, and front him if I had to.” He also used some veteran tricks. Not once, but twice on an early play Iverson yelled and threw his body around, pretending Webster had fouled him.
The referees weren’t buying it.
Webster went to work.
He ran Iverson off screens, Reggie Miller-style. He posted up. He shot long jumpers. He fought into the paint.
And just about none of it worked. Webster missed a layup. He made a mid-range jumper. He missed a 3. He missed a tip-in. He missed a short jumper.
In one telling play, Webster posted Iverson, rushed a move into the helping Samuel Dalembert, and missed a tough shot over the longest arms on the court.
Another time, the Blazers fought to get Webster the ball in the corner and looked to create something off the dribble. But he didn’t have a lot of room to operate, and ended up having to escape to the top of the key. By the time he determined there were no easy shots for him, he swung the ball into a shot-clock violation.
After all that, Portland was down six, and had scored just five points in the game’s first five minutes. Webster missed one more shot, then Portland stopped going to Webster.
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The fact is …
Just because:
Martell Webster is 6 feet 7 inches, and weighs 235 lbs,
while,
Allen Iverson is 6 feet 0 inches, and weighs 165 lbs,
it does not mean Portland’s young buck has a skill-based advantage in an array of different areas within his individual game that supercedes those of Mr. Iverson’s.
According to the Full Play-By-Play and the details provided by Henry Abbott:
BEGIN - 1st Quarter, 12:00
No. 1, Webster missed a 2PT layup. [10:52]
No. 2, He made a 2PT jump shot. [09:09]
No. 3, He missed a 3PT jump shot. [08:42]
Rebound: Offensive [08:26]
No. 4, He missed a 2PT tip-in shot. [08:26]
No. 5, He missed a 2PT jump shot. [07:37]
Turnover: Shot Clock Violation [07:05]
Personal Foul vs Iguodala, shooting [06:52]
No. 6, He missed a 2PT jump shot. [06:35]
END - 1st Quarter, 04:56, Subbed Out
BEGIN - 3rd Quarter, 12:00
No. 7, He missed a 2PT jump shot, blocked shot by Iguodala. [11:37]
No. 8, He missed a 2PT jump shot. [10:09]
Rebound: Defensive [03:48]
No. 9, He missed a 2PT dunk shot, blocked shot by Dalembert. [02:56]
Personal Foul vs Iverson, shooting. [02:50]
END - 3rd Quarter, 02:31, Subbed Out
BEGIN - 4th Quarter, 00:41.1
END - 4th Quarter, 00:00
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QUESTION
Where, exactly, would you say Martell Webster has an individual match-up advantage over Allen Iverson?
… since, according to Nate McMillan’s own words:
“Martell is not normally on the block for us. We wanted to make Iverson work some, so they didn’t just rest him. We wanted to go into the post with our guards … we tried Martell a few times.
You don’t want to take yourself out of rhythm by going to a guy who’s not normally in that position. We went to it a couple times, but we felt like we were trying to force some things there and we went away from that, and went back to what we normally do.”
ANSWER
Part I
If you look at the NBA Hotspots Chart for Martell Webster, to-date, what you should be able to see is that he is actually shooting/scoring the ball relatively poorly from a host of different spots on the floor … including:
A. From an interior location:
#3. Middle Lane 2PT shots, 1-6/.167
#4. Right Low Block 2PT shots, 0-6/.000
B. From a mid-range location:
#6. Left Elbow 2PT jump shots, 2-8/.250
#7. Free Throw Line 2PT jump shots, 1-5/.200
#9. Right Wing 2PT jump shots, 3-12/.250
and,
C. From a perimeter location:
#13. Right Angled 3PT jump shots, 17-54/.315
with the exceptions being …
A. From an interior location:
#1. Layups/dunks/tip-in shots, 49-93/.527
#2. Left Low Block 2PT shots, 5-9/.556
and, predominantly, well AWAY from the basket area …
B. From a mid-range location:
#5. Left Wing 2PT jump shots, 10-23/.435
#8. Right Elbow 2PT jump shots, 6-13/.462
and,
C. From a perimeter location:
#10. Left Corner 3PT jump shots, 19-52/.365
#11. Left Angled 3PT jump shots, 14-37/.378
#12. Middle Top 3PT jump shots, 9-19/.474
#14. Right Corner 3PT jump shots, 18-42/.429
Part II
A mismatch advantage CAN ONLY OCCUR in a specific aspect of the game where:
* Player X is being checked by Player Y; and,
* Player X has a skill-based advantage, compared to Player Y …
- because that particular skill is a regular part of what Player X brings to the table each and every time he plays the game against an opponent who is similar to Player Y
- within the specific context of how Player X’s team usually operates.
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Yes, indeed, the NBA game is about …
Effectively:
i] Creating individual match-up advantages;
ii] Exploiting individual match-up advantages; and,
iii] Minimizing individual mis-match disadvantages;
in order to create high percentage open shots:
A. Within the context of a specific game; and,
B. According to the specific strengths and weaknesses of the involved players …
but - first and foremost - it is absolutely crucial to actually know what exactly qualifies as a legitimate mis-match advantage when Team 1 plays against Team 2 and Player X is assigned to check Player Y.
As such, Martell Webster vs Allen Iverson does not qualify as a favourable mismatch advantage for the Blazers vs the 76ers, UNLESS MR. WEBSTER IS ACTUALLY BEING USED PROPERLY, by Nate McMillan, through a series of:
I. Post-ups in the Left Low Block position; and,
II. Weak side spot up opportunities when the ball is …
* Fed into the Low Post position and then kicked out
or,
* Driven into the interior of the defense and then kicked out
to Webster, specifically, for mid-range/perimeter jump shots over a much smaller defender, after several passes have already been made by his teammates.



